No missable achievements (plus 21 unknown)
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Find 20 page scraps
Find 15 graves
Find 40 treasures chests
Find 25 clues
Unlock 10 destinations
Find 6 lost souls
Discover the name of the Maiden in Red
Unlock all destinations
Find all of the lost souls
Free six lost souls
Find all clues
Find all page scraps
Find all treasure chests
Free all of the lost souls
Find all graves
Kill 3 Thieves
Acquire all unique weapons
Stealth-kill 20 enemies with melee attacks
Kill 100 enemies with tomahawks
Kill 1000 enemies
Stealth-kill 200 enemies